SAND SPRINGS, Oklahoma - Firefighters battled a fire at Keystone Lake's Pier 51 on Sunday night, and we're told it began on a houseboat and spread to others and the dock itself.

According to the Oklahoma Highway Patrol, eight boats were fully engulfed at D dock. Nearly a dozen slips were on fire, we're told.

A Keystone State Park ranger confirmed there were people trapped on the dock and were brought to safety by first responders.

No injuries were reported.

Officials say they protected the dock the best they could by towing away the burning boats either to the shore or to let them sink out in the water.

The number of boats damaged hasn't been tallied at this time, but we will will have more on Six In The Morning.